This is a patch to reserve the code points used by the project quota
feature. It should be the no different from the ones used by the
project quota patches; please let me know ASAP if you spot any
discrepancies, or anything else that I might have missed.
Cheers,
- Ted
commit 8b4953e13f4c5d9a3c869f5fca7d51e1700e7db0
Author: Theodore Ts'o <tytso@xxxxxxx>
Date: Sat Oct 17 16:15:18 2015 -0400
ext4: reserve code points for the project quota feature
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 3f248c9..320f10e 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -374,6 +374,7 @@ struct flex_groups {
#define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
#define EXT4_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
#define EXT4_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
+#define EXT4_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
#define EXT4_FL_USER_VISIBLE 0x004BDFFF /* User visible flags */
@@ -431,6 +432,7 @@ enum {
EXT4_INODE_EA_INODE = 21, /* Inode used for large EA */
EXT4_INODE_EOFBLOCKS = 22, /* Blocks allocated beyond EOF */
EXT4_INODE_INLINE_DATA = 28, /* Data in inode. */
+ EXT4_INODE_PROJINHERIT = 29, /* Create with parents projid */
EXT4_INODE_RESERVED = 31, /* reserved for ext4 lib */
};
@@ -475,6 +477,7 @@ static inline void ext4_check_flag_values(void)
CHECK_FLAG_VALUE(EA_INODE);
CHECK_FLAG_VALUE(EOFBLOCKS);
CHECK_FLAG_VALUE(INLINE_DATA);
+ CHECK_FLAG_VALUE(PROJINHERIT);
CHECK_FLAG_VALUE(RESERVED);
}
@@ -692,6 +695,7 @@ struct ext4_inode {
__le32 i_crtime; /* File Creation time */
__le32 i_crtime_extra; /* extra FileCreationtime (nsec << 2 | epoch) */
__le32 i_version_hi; /* high 32 bits for 64-bit version */
+ __le32 i_projid; /* Project ID */
};
struct move_extent {
@@ -1179,7 +1183,8 @@ struct ext4_super_block {
__u8 s_encrypt_algos[4]; /* Encryption algorithms in use */
__u8 s_encrypt_pw_salt[16]; /* Salt used for string2key algorithm */
__le32 s_lpf_ino; /* Location of the lost+found inode */
- __le32 s_reserved[100]; /* Padding to the end of the block */
+ __le32 s_prj_quota_inum; /* inode for tracking project quota */
+ __le32 s_reserved[99]; /* Padding to the end of the block */
__le32 s_checksum; /* crc32c(superblock) */
};
@@ -1566,6 +1571,7 @@ static inline int ext4_encrypted_inode(struct inode *inode)
*/
#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
#define EXT4_FEATURE_RO_COMPAT_READONLY 0x1000
+#define EXT4_FEATURE_RO_COMPAT_PROJECT 0x2000
#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index 9b964a5..f15d980 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -197,6 +197,7 @@ struct inodes_stat_t {
#define FS_EXTENT_FL 0x00080000 /* Extents */
#define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */
#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
+#define FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
#define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
--
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